568440964 has 81 divisors (see below), whose sum is σ = 1262682981. Its totient is φ = 223161120.

The previous prime is 568440949. The next prime is 568440967. The reversal of 568440964 is 469044865.

The square root of 568440964 is 23842.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 84088900 + 484352064 = 9170^2 + 22008^2 .

It is not an unprimeable number, because it can be changed into a prime (568440967) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4339179 + ... + 4339309.

Almost surely, 2^568440964 is an apocalyptic number.

568440964 is the 23842-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 568440964

568440964 is an abundant number, since it is smaller than the sum of its proper divisors (694242017).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

568440964 is a wasteful number, since it uses less digits than its factorization.

568440964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The cubic root of 568440964 is about 828.3778080112.

The spelling of 568440964 in words is "five hundred sixty-eight million, four hundred forty thousand, nine hundred sixty-four".